# 编写一个画玉桂狗的程序
import turtle
turtle.setup(800, 600)
turtle.speed(10)
turtle.penup()
turtle.goto(-200, 0)
turtle.pendown()
turtle.circle(200)
turtle.penup()
turtle.goto(-200, 0)
turtle.pendown()
turtle.circle(150)
turtle.penup()
turtle.goto(-200, 0)
turtle.pendown()
turtle.circle(100)
turtle.done()
